Question

\[\int\left( \sec^2  x + {cosec}^2  x \right)  dx\]

Answer 1

\[\int\left( \sec^2 x + {cosec}^2 x \right)dx\]
\[ = \int \sec^2\text{ x    dx} + \int {cosec}^2\text{ x  dx}\]
\[ = \tan x - \cot x + C\]